/*! normalize.css v8.0.0 | MIT License | github.com/necolas/normalize.css */

/* Document
   ========================================================================== */

/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */

html {
  line-height: 1.15; /* 1 */
  -webkit-text-size-adjust: 100%; /* 2 */
}

/* Sections
   ========================================================================== */

/**
 * Remove the margin in all browsers.
 */

body {
  margin: 0;
}

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */

h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
body {
  color: #333;
  font-size: 14px;
}

a {
  color: #333;
}
/* Grouping content
   ========================================================================== */

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */

hr {
  box-sizing: content-box; /* 1 */
  height: 0; /* 1 */
  overflow: visible; /* 2 */
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

pre {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/* Text-level semantics
   ========================================================================== */

/**
 * Remove the gray background on active links in IE 10.
 */

a {
  background-color: transparent;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */

abbr[title] {
  border-bottom: none; /* 1 */
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */

b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

code,
kbd,
samp {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */

small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content
   ========================================================================== */

/**
 * Remove the border on images inside links in IE 10.
 */

img {
  border-style: none;
}

/* Forms
   ========================================================================== */

/**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */

button,
input,
optgroup,
select,
textarea {
  font-family: inherit; /* 1 */
  font-size: 100%; /* 1 */
  line-height: 1.15; /* 1 */
  margin: 0; /* 2 */
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */

button,
input {
  /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select {
  /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */

button,
[type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}

/**
 * Remove the inner border and padding in Firefox.
 */

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/**
 * Restore the focus styles unset by the previous rule.
 */

button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Correct the padding in Firefox.
 */

fieldset {
  padding: 0.35em 0.75em 0.625em;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */

legend {
  box-sizing: border-box; /* 1 */
  color: inherit; /* 2 */
  display: table; /* 1 */
  max-width: 100%; /* 1 */
  padding: 0; /* 3 */
  white-space: normal; /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */

progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */

textarea {
  overflow: auto;
}

/**
 * 1. Add the correct box sizing in IE 10.
 * 2. Remove the padding in IE 10.
 */

[type="checkbox"],
[type="radio"] {
  box-sizing: border-box; /* 1 */
  padding: 0; /* 2 */
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */

[type="search"] {
  -webkit-appearance: textfield; /* 1 */
  outline-offset: -2px; /* 2 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
  -webkit-appearance: button; /* 1 */
  font: inherit; /* 2 */
}

/* Interactive
   ========================================================================== */

/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */

details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */

summary {
  display: list-item;
}

/* Misc
   ========================================================================== */

/**
 * Add the correct display in IE 10+.
 */

template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */

[hidden] {
  display: none;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul,
li {
  list-style: none;
}
.click {
  user-select: none;
  cursor: pointer;
}
.click:hover {
  opacity: 0.8;
}
input,
button {
  outline: none;
}

button {
  border: none;
}
/* 鼠标悬停出现下划线 */
.underline {
  cursor: pointer;
}
.underline:hover {
  text-decoration: underline;
}

/* 图片的宽度跟随父元素 */
.auto-img {
  width: 100%;
  height: 100%;
  display: block;
}

/* 文字超出显示 ... */
.text-row-1 {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.text-row-2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2; /*这个决定行数*/
  overflow: hidden;
}
.text-row-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3; /*这个决定行数*/
  overflow: hidden;
}
.text-row-4 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4; /*这个决定行数*/
  overflow: hidden;
}
*,
p,
div {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
@media (max-width: 900px) {
  .click:hover {
    opacity: 1;
  }
  .click:active {
    opacity: 0.8;
  }
  .underline:hover {
    text-decoration: none;
  }
  .underline:active {
    text-decoration: underline;
  }
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  border-radius: 4px;
  width: 80px;
  height: 40px;
  line-height: 40px;
}
.btn:hover {
  opacity: 0.8;
}

/*  !主按钮1 */

.btn-main {
  border: 1px solid var(--main-color);
  background: var(--main-color);
  color: #fff;
}
.plain.btn-main {
  border: 1px solid var(--main-color);
  background: transparent;
  color: var(--main-color);
}
/* !主按钮2 */
.btn-main-2 {
  border: 1px solid var(--main-color-2);
  background: var(--main-color-2);
  color: #fff;
}
.plain.btn-main-2 {
  border: 1px solid var(--main-color-2);
  background: transparent;
  color: var(--main-color-2);
}
/* ! 红色按钮 */
.btn-red {
  background-color: var(--red-color);
  color: #ffffff;
}

.btn-red.plain {
  border: 1px solid var(--red-color);
  background: transparent;
  color: var(--red-color);
}

/* ! 绿色按钮 */

.btn-green {
  background-color: var(--green-color);
  color: #ffffff;
}
.btn-green.plain {
  border: 1px solid var(--green-color);
  background: transparent;
  color: var(--green-color);
}

/* ! 灰色按钮 */

.btn-gray {
  background-color: var(--gray-color);
  color: #ffffff;
}

.btn-gray.plain {
  border: 1px solid var(--gray-color);
  background: transparent;
  color: var(--gray-color);
}
.btn-gray.gradient {
  background: linear-gradient(180deg, #ffffff 0%, #d8d8d8 100%);
  color: #aaaaaa;
}

/* ! 橙色按钮 */

.btn-orange {
  background-color: var(--orange-color);
  color: #ffffff;
}
.btn-orange.plain {
  border: 1px solid var(--orange-color);
  background: transparent;
  color: var(--orange-color);
}

/* ! 黄色按钮 */

.btn-yellow.plain {
  color: var(--yellow-color);
  background: transparent;
  border: 1px solid var(--yellow-color);
}
.btn-yellow {
  color: #fff;
  background: var(--yellow-color);
}

.main-content {
  width: 1200px;
  margin: 0 auto;
}
a {
  text-decoration: none;
}
